JPH05347713A - System for safely transmitting message - Google Patents

Abstract

PURPOSE: To provide a system for safely transmitting a message from a transmitter to a receiver by clearly identifying the sender. CONSTITUTION: In the system for safely transmitting a message from the transmitter to the receiver, a telefacsimile equipment 10 and a cipher means 22 for ciphering a signal are provided on the transmitter, and a decoding means 25 for decoding an input signal previous to the receiving of a message in a telefacsimile equipment 20 and a message packaging and integrating device 21 for safely storing a message received by the telefacsimile equipment are provided on the receiver side. Then, an activating means 23 which includes a card reader 231 and a keyboard 232, and activates the cipher means 22 responding to signals from the card reader 231 and the keyboard 232 is provided on the transmitter side. Then, a control means 24 for activating the decoding means responding to a signal radiated from the signals from the card reader 231 and the keyboard 232 is disposed on the receiving side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for securely transmitting a message from a sender to a recipient with a clear identification of the sender.

This system has, on the transmitter side: a telefax type message transmitter, an encryption device for encrypting a telefax transmission signal prior to transmission, and a receiver side: a telefax type message. Decoding device for decoding an input signal prior to reception in a receiving device-Message wrapping and message bundle for safely storing a message received by the receiving telefax device in a form packaged in a sealed outer box It is of the type that has an oxidizer.

[0003]

BACKGROUND OF THE INVENTION It has been known for a long time to transmit messages between a sender and a receiver with the aid of devices of the telefax type, for example via physical transmission lines or by cordless transmission. . Message transmission is
It is brought about by inserting a sheet of paper with the message to be transmitted in the sender's telefax machine, which message has been converted into a signal format by the transmitting telefax machine. These signals are transmitted to the recipient side, where they are received by the receiving telefax machine and converted into printed text on further paper sheets. Broadly speaking, the word "text"
Is not just a word, as used here,
It should be understood to consist of characters, all kinds of signs, picture materials, and the like.

In order to protect the text from being "listening" (tapping) along the way from the sender to the recipient,
It is also known to encrypt text prior to transmission to prevent unauthorized persons from reading the message. The recipient can then understand the message by decrypting it back into its original text form.

When sending a message by means of a telefax machine which is generally available to many people, for example in the workplace, there is a risk that the message to be sent and printed will be disseminated in an uncontrolled manner. This may at times be disadvantageous in terms of technical, business / technical or political relationships. To get rid of this danger,
What is known from U.S. Pat.No. 5,031,379 is
Messages received by the telefax machine,
It uses a message wrapping and message gathering device for secure storage in a sealed outer box connected to a telefax machine.

We find areas where the degree of security against "listening" of message transmissions is greater than that provided by the techniques exemplified above. As is well known, the signatures found in the example contract sent via a telefax machine do not constitute a legitimate signature in legal terms. Other areas that require greater security when sending messages are found in, for example, banking systems. In order to have a legitimate procedure, make sure that the transmission is not listening (cash,
The person sending the order for the money transaction (for shares, etc.) can be confident, and the recipient: No listening or wiretapping has occurred. 2. An unauthorized person cannot use the order on the recipient side. You must be confident that the sender is, in reality, the person specified on the order.

[0007]

SUMMARY OF THE INVENTION It is an object of the invention to provide a system which allows messages to be transmitted with the degree of security required in the extreme case described above.

[0008]

The system of the present invention, of the type described above, comprises a card reader and keyboard on the transmitter side and activates the encryption device in response to signals from the card reader and keyboard. Control for activating the decoding means in response to a signal emitted from the signal from the card reader and keyboard on the receiver side. Have a device. The system is activated with a so-called "smart card" type card, for example. These and other features of the system of the invention will be apparent from the claims.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described in more detail with reference to the accompanying schematic drawings.

FIG. 1 shows a telefax machine 10 provided with signal receiving means and a printing mechanism for printing a received message on a sheet of paper taken from a paper sheet store. The paper sheets that have passed through the printing mechanism are gathered and bundled together in a closed outer box 11 as they leave the printer. The device also has a reservoir of packaging material that wraps the bundled sheets. Closed outer box 1
At the bottom of the 1 is attached a lockable drawer 14 in which a bundle of wrapped messages can be collected, allowing an authorized person to retrieve said messages from the drawer.

A transportation device 12 is provided between the device 10 and the outer box 11.
A switch means provided therewith, when in the first position 121, allows messages, receipts, etc. to proceed to the open collection box 13, and a second
The printed sheet when it is in position 122 of
To the message bundling and packaging means.
The switch means 121, 122 are moved between said first and second positions in response to a separate signal (code) provided by the transmitting device in connection with sending a message to the receiving station. .

In the system shown in FIG. 2, the transmitter side is provided with: a telefacsimile type message transmitting device 10 an encryption means 22 for encrypting a telefacsimile output signal from the device 10 prior to transmission, It has a keyboard 232 and has activation means 23 for activating the encryption means 22 in response to signals from the card reader 231 and the keyboard 232, and on the receiver side: Decoding means 25: Message receiving device 20 of the telefax machine 20. Message wrapping and message accumulating means 21 for safely storing a message received by the telefax device 20 in a sealed outer box 211.・ Decoding procedure according to the signal radiated from the signals from the card reader 231 and the keyboard 232. With control means 24 is for activating 25.

In practice, the system must also be able to both send and receive messages on the same side, so that the two telefax machines 10, 20 are It will be appreciated that the means 22 and 25 serve both to send and receive messages, and the means 22 and 25 serve to encrypt and decrypt messages.

The system is also capable of sending and receiving uncoded or unencrypted messages without the need for modification. Of course, the encryption means are not used in this mode of operation. In this regard, it is possible for the receiving device to mark the so-called "clear language marking", for example the word "not encrypted", on top of each printed sheet to be started. It is convenient.

A person who wishes to send a message requiring a high degree of security against unauthorized listening or forgery will send a typed, printed or written message to a given facsimile of the telefacsimile device 10. Put it in place,
Insert his card (smart card) into the card reader 231, insert the PIN code through the keyboard 232, dial the receiver number (probably the card number) on the keyboard of the device, and press the START button .. PI with the person's number hidden in the card inserted
If it matches the N code, the telefax device 10
Then sends the signal encrypted by the encryption device 22 to the receiver side.

A card reader 231 and a keyboard 232
In response to the signal emanating from the signal from the receiver side, the control means 24 on the receiver side activates the decoding means 25 and the telefax device 2 for said decoded message text.
Trigger a separate cryptographic marking on top of each printed sheet starting at 0. More specifically, this separate cryptographic marking is placed on the topmost point of the printed paper, where the receiving device cannot write the "sent message". This eliminates the risk of a person manipulating an unencrypted message and gives the impression that the message was encrypted during transmission.

Further, the control means 24 controls the sender-side card reader 2 on each printed sheet initiated in the telefax device 20 for the decrypted message text.
In response to the signal from 31, the number marking is triggered to be applied. This allows an authorized recipient, who should know the card numbers of the people involved (not like a PIN code), to make sure that the incoming message was truly sent by that sender. You can

Thus, for example, the bank no longer needs to contact the customer to make sure that the order sent to the bank is perfectly normal.

Many modifications are possible within the scope of the inventive concept. For example, if a person has his card and PIN
The entire message may be stored in memory within the telefax machine prior to sending the message to activate the encryption process with the help of the code.
This is due to the unacceptable effect of the transmission sequence,
Constitutes an additional safety measure.

Another modification is to have the decryption means 25 detect the occurrence of the encrypted text and, at the same time, have a separate encryption mark on the receiver side.
It is something that is triggered.

[0021]

As described above, according to the present invention,
The transmitter side has a card reader and a keyboard, and has activation means for activating the encryption device in response to signals from the card reader and keyboard, and the receiver side has the card. Having a control device that is for activating the decoding means in response to the signal emanating from the signal from the reader and the keyboard, the sender is clearly identified and the message has the required degree of security. It has the effect of being transmitted.

[Brief description of drawings]

FIG. 1 illustrates a telefacsimile machine equipped with a message wrapping and message stacking device.

FIG. 2 is a diagram illustrating a system including a transmitting and receiving telefax device, an encryption / decryption means, an activation means and a control means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Tele-facsimile type message transmitting device 11 ... Sealed outer box 12 ... Transport device 13 ... Open collection box 14 ... Lockable drawer 20 ... Tele-facsimile type message receiving device 21 ... Message packing and message accumulating means 22 ... Encryption means 23 ... Activating means 231 ... Card reader 232 ... Keyboard 24 ... Control means 25 ... Decoding means

Continuation of front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication location H04L 9/12 (72) Inventor Lars Eklund S-741 42 Kunivsta, Volbrodbegen 28 Sweden

Claims (4)

[Claims] 1. A transmitter side is provided with a message transmitting device such as a telefax; an encryption means for encrypting a signal output from the telefax device prior to transmission; Decoding means for decoding an input signal prior to receiving the message at a fax type message receiving device; securely storing the message received by the telefax device in a sealed outer box,
A system for securely transmitting a message from a transmitter to a receiver, which further comprises a card reader (231) and a keyboard (232) on the transmitter side. ) And an activation means (23) for activating the encryption means (22) in response to a signal from the keyboard (232); and on the receiver side, the activation means (23). And a control means (24) for activating the decoding means (25) in response to a signal emitted from a signal from the card reader (231) and the keyboard (232);
Message transmission system characterized by. 2. In connection with the activation of said decryption means (25), said control means (23) is a decryption message in which a separate cryptographic marking is initiated at the receiver's telefax device. A system according to claim 1, characterized in that it is arranged to trigger to be placed on top of each starting print sheet for text. 3. In connection with the activation of the decoding means (25), the control means (23) is responsive to a signal from the card reader (231) on the transmitter side, the receiver. 2. The device according to claim 1, characterized in that it is provided for inducing a number marking of each starting printed sheet for the decrypted message text on the side of the telefax device (20).
Alternatively, the system according to claim 2. 4. The control means (24) in connection with receiving an unencrypted message, ie a clear language message.
Is provided to induce a clear language mark to be added to the top of each starting printed sheet for clear language text at the telefax device (20) at the receiver side. The system according to claim 1.